from flask import render_template, current_app, session, request, jsonify, abort

from info.models import User, News, Category, CommentLike, Comment
from info import constants

from info import db
from info.utils.response_code import RET
from . import news_blu
from info.utils.common import user_login_data
from flask import g



@news_blu.route('/followed_user', methods=["POST"])
@user_login_data
def follow_user():
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")
    user_id = request.json.get('user_id')
    action = request.json.get("action")
    if not all([user_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ('follow', 'unfollow'):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    try:
        user_id = int(user_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    try:
        others = User.query.get(user_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询错误")
    if action == "follow":
        if user not in others.followers:
            others.followers.append(user)
    else:
        if user in others.followers:
            others.followers.remove(user)
    return jsonify(errno=RET.OK, errmsg="OK")


@news_blu.route('/<int:news_id>')
@user_login_data
def news_detail(news_id):
    user = g.user
    news_list = []
    try:
        news = News.query.order_by(News.clicks.desc()).limit(constants.CLICK_RANK_MAX_NEWS)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询错误")
    for new in news:
        news_list.append(new.to_dict())

    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        abort(404)
    # 更新新闻点击次数
    news.clicks += 1

    is_collected = False
    if user:
        if news in user.collection_news:
            is_collected = True
    # TODO  用户粉丝关注和被关注逻辑
    is_followed = False
    if news.user and user:
        if news.user in user.followed:
            is_followed = True
        # if user in news.user.followers:
        #     is_followed = True
    comments = []
    try:
        comments = Comment.query.filter(Comment.news_id == news_id).order_by(Comment.create_time.desc())
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询错误")
    comment_like_ids = []
    if user:
        comment_ids = [comment.id for comment in comments]
        comments_like = CommentLike.query.filter(CommentLike.comment_id.in_(comment_ids),
                                                 CommentLike.user_id == user.id)
        comment_like_ids = [comment_like.comment_id for comment_like in comments_like]

    comment_dict_li = []
    for comment in comments:
        comment_dict = comment.to_dict()
        comment_dict['is_like'] = False
        if comment.id in comment_like_ids:
            comment_dict['is_like'] = True
        comment_dict_li.append(comment_dict)

    data = {
        "user": user.to_dict() if user else None,
        'news_dict': news_list,
        'news': news.to_dict(),
        'is_collected': is_collected,
        'comments': comment_dict_li,
        'is_followed': is_followed,
    }

    return render_template('news/detail.html', data=data)
    # user = g.user
    # news_list = []
    # try:
    #     news = News.query.order_by(News.clicks.desc()).limit(constants.CLICK_RANK_MAX_NEWS)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="查询错误")
    # if not news :
    #     return jsonify(errno=RET.PARAMERR, errmsg="无数据")
    # for new in news :
    #     news_list.append(new.to_dict())
    # news = None
    # try:
    #     news = News.query.get(news_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="查询错误")
    # if not news :
    #     return jsonify(errno=RET.PARAMERR, errmsg="没有该条新闻")
    # news.clicks += 1
    # is_collected = False
    # if user :
    #     if news not in user.collection_news:
    #         is_collected = True
    # comment_dict_li = []
    # comments = []
    # try:
    #     comments = Comment.query.filter(Comment.news_id==news.id).order_by(Comment.create_time.desc())
    # except Exception as e:
    #     current_app.logger.error(e)
    #     # return jsonify(errno=RET.DBERR, errmsg="查询错误")
    #
    #
    #
    #
    #
    # for comment in comments :
    #     comment_dict = comment.to_dict()
    #     comment_dict['is_like'] = False
    #     comment_dict_li.append(comment)
    #
    #     data = {
    #     "user": user.to_dict() if user else None,
    #     'news_dict': news_list,
    #     'news': news.to_dict(),
    #     'is_collected':is_collected,
    #     'comments': comment_dict_li
    # }
    # return render_template('news/detail.html',data=data)


# 收藏
@news_blu.route('/news_collect', methods=["POST"])
@user_login_data
def collect_news():
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")
    news_id = request.json.get('news_id')
    action = request.json.get('action')
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ['cancel_collect', 'collect']:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    try:
        news_id = int(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="查询错误")
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询错误")
    if not news:
        return jsonify(errno=RET.PARAMERR, errmsg="查询错误")
    if action == "cancel_collect":
        if news in user.collection_news:
            user.collection_news.remove(news)
    else:
        if news not in user.collection_news:
            user.collection_news.append(news)

    return jsonify(errno=RET.OK, errmsg="成功")

    # user = g.user
    # if not user :
    #     return jsonify(errno=RET.SESSIONERR, errmsg="尚未登陆")
    # news_id = request.json.get("news_id")
    # action = request.json.get("action")
    # if not all([news_id,action]):
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # try:
    #     news_id = int(news_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="查询错误")
    #
    # try:
    #     news = News.query.get(news_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="查询错误")
    # if action not in ["collect","cancel_collect"]:
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # if action == "collect":
    #     if news not in user.collection_news:
    #         user.collection_news.append(news)
    # else:
    #     if news in user.collection_news:
    #         user.collection_news.remove(news)
    #
    # return jsonify(errno=RET.OK, errmsg="成功了")


#  点赞
@news_blu.route('/comment_like', methods=["POST"])
@user_login_data
def comment_like():
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")
    news_id = request.json.get('news_id')
    comment_id = request.json.get('comment_id')
    action = request.json.get('action')
    if not all([action, comment_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    if action not in ['add', 'remove']:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    try:
        news_id = int(news_id)
        comment_id = int(comment_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="查询错误")
    try:
        comment = Comment.query.get(comment_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询错误")
    if not comment:
        return jsonify(errno=RET.NODATA, errmsg="查询错误")
    if action == "add":
        comments_like = CommentLike.query.filter(CommentLike.comment_id == comment.id,
                                                 CommentLike.user_id == user.id).first()
        if not comments_like:
            comments_like = CommentLike()
            comments_like.user_id = user.id
            comments_like.comment_id = comment_id
            db.session.add(comments_like)
            comment.like_count += 1

    else:
        comments_like = CommentLike.query.filter(CommentLike.comment_id == comment.id,
                                                 CommentLike.user_id == user.id).first()
        if comments_like:
            db.session.delete(comments_like)
            comment.like_count -= 1
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据库错误")

    return jsonify(errno=RET.OK, errmsg="成功")

    # user = g.user
    # if not user :
    #     return jsonify(errno=RET.SESSIONERR, errmsg="查询错误")
    #
    # news_id = request.json.get('news_id')
    # comment_id = request.json.get('comment_id')
    # action = request.json.get('action')
    # if not all([news_id,comment_id,action]):
    #     return jsonify(errno=RET.PARAMERR, errmsg="查询错误")
    #
    # try:
    #     news_id = int(news_id)
    #     comment_id = int(comment_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # if action not in ['add','remove']:
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # try:
    #     comment = Comment.query.get(comment_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="查询错误")
    # if action == "add":
    #     comment_like_model = CommentLike.query.filter(CommentLike.comment_id==comment_id,CommentLike.user_id==user.id).first()
    #     if not comment_like_model :
    #         comment_like_model = CommentLike()
    #         comment_like_model.user_id = user.id
    #         comment_like_model.comment_id = comment_id
    #         db.session.add(comment_like_model)
    #         comment.like_count += 1
    #
    # else:
    #     comment_like_model = CommentLike.query.filter(CommentLike.comment_id==comment_id,CommentLike.user_id==user.id).first()
    #     if comment_like_model:
    #         db.session.delete(comment_like_model)
    #         comment.like_count -= 1
    # return jsonify(errno=RET.OK, errmsg="成功")


@news_blu.route('/news_comment', methods=["POST"])
@user_login_data
def news_comment():
    user = g.user
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="查询错误")

    news_id = request.json.get('news_id')
    comment_content = request.json.get('comment')
    parent_id = request.json.get('parent_id')
    if not all([news_id, comment_content]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    try:
        news_id = int(news_id)
        if parent_id:
            parent_id = int(parent_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="参数错误")
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询错误")
    if not news:
        return jsonify(errno=RET.PARAMERR, errmsg="没有该新闻")
    comment = Comment()
    comment.news_id = news_id
    comment.user_id = user.id
    comment.content = comment_content
    if parent_id:
        comment.parent_id = parent_id

    try:

        db.session.add(comment)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
    return jsonify(errno=RET.OK, errmsg="成功", data=comment.to_dict())
    # user = g.user
    # if not user :
    #     return jsonify(errno=RET.SESSIONERR, errmsg="请先登录")
    # news_id = request.json.get('news_id')
    # comment_content = request.json.get('comment')
    # parent_id = request.json.get('parent_id')
    # if not all([news_id,comment_content]):
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    # try:
    #     news_id = int(news_id)
    #     if parent_id:
    #         parent_id = int(parent_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    #
    # try:
    #     news = News.query.get(news_id)
    # except Exception as e:
    #     current_app.logger.error(e)
    #     return jsonify(errno=RET.DBERR, errmsg="查询错误")
    # if not news :
    #     return jsonify(errno=RET.PARAMERR, errmsg="没有新闻")
    # comment = Comment()
    # comment.news_id = news.id
    # comment.content = comment_content
    # comment.user_id = user.id
    # if parent_id:
    #     comment.parent_id = parent_id
    # db.session.add(comment)
    # db.session.commit()
    #
    # return jsonify(errno=RET.OK, errmsg="成功",data=comment.to_dict())
